restApiUrl: string - Specifies the url where to perform the GET request.
isRss: boolean - Specifies if the result is an RSS feed.
itemsExpression: ConfiguredExpression - An expression that will be evaluated while retrieving the items. You can access the result using the
resultvariable which is bound to the scope.
connectableKey: string - A connectable key for the data provider.
propertyMappings: ConfiguredPropertyMappings - Property mapper for the data.
useProxy: boolean - Set this to true in order to use our Proxy-endpoint. This will enable sources that have CORS-restrictions to work.